Shigaite and Smoky Quartz Physical Properties

Shigaite

Smoky Quartz

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1 Physical Properties

1.1 Tenacity

Moderately ﬂexible

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.322.65

1 7.18

1.5 Fracture

Flexible Flexible fragments.

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Perfect on {0001}

{0110} Indistinct

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Not Available

SiO₂

Shigaite and Smoky Quartz Chemical Formula

While comparing Shigaite and Smoky Quartz physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Shigaite and Smoky Quartz chemical formula.

Chemical formula of Smoky Quartz- SiO₂

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Shigaite and Smoky Quartz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Shigaite and Smoky Quartz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Shigaite and Smoky Quartz Optical Properties during the identification of gemstone. Specific gravity of Shigaite is 2.65 whereas that of Smoky Quartz is 2.65.